package bishi.day26_5_24;

import java.math.BigDecimal;
import java.util.Scanner;

/**
 * @author 是阿秋啊
 * @date 2022/05/24 16:25
 **/
public class cat_in_wan {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()) {
            BigDecimal n = sc.nextBigDecimal();
            BigDecimal r = sc.nextBigDecimal();
            BigDecimal tmp = r.multiply(BigDecimal.valueOf(2)).multiply(BigDecimal.valueOf(3.14));
            if(tmp.compareTo(n) >= 0) {
                System.out.println("Yes");
            }else{
                System.out.println("No");
            }
        }
    }
}